In an earlier article, Animation in Honeycomb, I talked about the new property animation system available as of Android 3.0. This new animation system makes it easy to animate any kind of property on any object, including the new properties added to the View class in 3.0. In the 3.1 release, which was made available recently, we added a small utility class that makes animating these properties even easier.

First, if you're not familiar with the new View properties such as alpha and translationX, it might help for you to review the section in that earlier article that discusses these properties entitled, rather cleverly, "View properties". Go ahead and read that now; I'll wait.